Weighing and filling machine.



WEGHNG AND FILLING MACHINE.

13 SHEETS-SHEET 1.

NNY

fo, G,

PPLIGATION FT URD FEB. Z1, 19N. Y

Patented Feb. 10, 19ML,

D. A. FLAVBLL.

WBIGHENC AND FILLING MACHINE.

APPLIGTION FILED FEB. 21, 1911.

Patented F81). l0, 1914.

13 SHEETS-SHEET 5` @"4 Mie/Joao D. FLVELL.

WEIGHING AND Fl-.MNG MACHINE.

.APPLIGATION MLBD 31:13.21, 1911.

Pat

@fated Feb. E0, 1914 13 SHEETS-SHEET t3.

D. A. FLAVELL.

WEIGHNU' ND FILLING MAGHINB.

APPLICATION FILED PEB.21, 1911.

1,086,360. mgm-@ F8111@ 11 E'LAVLLLl G AND LLING MACHINE.

WEIGH APPLE D. A.. PLAVBLL. WEIGHING AND FILLING MACHINE.

APPLICATION FILED PEB. 21, 1911.

Patented Feb. 10, 1914.

APPLICATION FILED FEB.2l,1911.

Patented Feb. i0, 1914.

1S SHEETS-SHEL l0.

witnesses o, f um.

D. A. PLAVELL.

WBIGHING AND FILLING MACHINE.

APPLICATION IILED PEB. 21, IQII.

Patented Febf 10, 1914 13 SHEETS-SHBET l1 D. A. FLAVELL.

WBIGHING AND FILLING MAHNE.

APPLICATION FILED FEB. 21, .1911,

1,086,860. Patented Feb. 10, 191e.

13 SHEETS-SHEET 12.

1Q. dey/ema HHM/maj E. f MAXELL.

WBIGHNG AND FILLING MACHINE.

APPLGATION FILED TER 2l, 19H.

Patented Feb. 10, i914.

13 SHEETS-SHEET i3.

"WM/wane able as well amounting' to a considerable 'the aoeompanying drawings in which,

-DENIS AIfBERT FLAVELL, OF JERSEY CITY, NEJV JERSEY.

WEIGHING .AND FILLING MACHINE.

Specification of Letters Patent.

Patented Feb. 10,1914.

Appncationniea February 21, 1911. serial No. 610,054.

To a/Z ir/rom it may Conair/z l'e it known that I, DENIS: A. FmvEm., citizen of the United States. residing at Jersev City, in the county ot iludson and State of YNew Jersey, have invented certain new and useful improvements in ll'reig'hing and Filling' Machines. ot' whit-h the followingv is a sperifieation.

'lhis invention relates to improvements in an automatic weigljhinpr and tilling maehine, and the inineipal object ol the invention is to provide a machine tor accurately weighinel a powdered or granulated substanee and depositing saine in cans or cartons.

Another object of the invention is to provide a machine, for wk'ighing a powderI and depositing it vin a. can without trapping;` air thereinto. And another objeet is to provide a machine ot the' nature explained having' automaticmeans for preventing` the es .'ape of the powder dust, which is very objectionless where a large quantity of goods is handled.

lVith the above and other objeets in view l have invented the machine illustrated in Figui-e1 isa trout elevation o'tmyiinproved automatic machine. Fig'. L) is a side elevation thereof, taken partly iu seetion. Fig'. $3 is a partial top plan view, certain ot the mechanism having' been removed` Fig. nl is a seetion online o o o'lE Fig'. Q. Figi: 5 is a` seetional view on line (.l-(f. ot' Fig. 2. showing' a detail of seale arm elainpinj;y device, Figi'. ti a detail view ot au electrical release device, Fie'. "t" is a detail view oit a rlutch trip, Fig. 8 is a detail view of a trip hook member. Figi'. 5l is a view ot a trip hook releasing eam, Fit'. l() is a detail view of a` portion ot' a eam earryin;` mechanism, Fig. 11 is an enlarged de tail view of a portion of a slideway, Fig. 12 is a cross sectional View of the slideway taken on line /r--tf ot Fig. 10, Fig. 13 is a detail top plan View of a delivery wheelv` Fig. 'lt is a trout view of Fig. 13, Fig. 15 is a seetiona view taken on line of Fig. 14, Fig. 16 is a detail of a` portion of an endless Can conveyor belt., Fig. 17 is ay sectional view of Fig. 't6 taken on line Z-Z, Fig. 18 is a detail View of a ean securingr member shown in a reversed position, Fig. 18l is a side elevation of Fin'. 18 shown partly broken away and partly reduced in scale, Fig. 19 is a` sectional view taken on line g-f/ of Fig'. 2, looliir' down, the plan of a wheel above said' Section i line being shown, Fig. Q0 is a detail of i'.

worin feed operating'.` t'orli. Q1 is a, topl view of a pair et iiiingrlioppers with cover removed, Fig. ZL is a eros l:eetion of Fig. 21, tal-:en on the line fir-rf with cover on, Fig. is a detail view of a measuring bloeit, Fig. @el is a top view thereof, Fig. is a` detail View ot a yscale heani operating device, Fig. :26 is a bottom view of Fig. Q5, Fig. Q7 is a top View ol a main clutch member taken partly in section to show operatingr slide, Fifi. 28 is a ross sectional view on line cnc of Fig. 27,

Fit'. 29 is a detail view ota slide member, Fig. 30 is a seetienai view taken on line (Iwo of F in'. 3 showiireA in detail the relation latween the primary clutch and the Second ary clutch, Fig'. Si is a eentral sectional View et a eale hopper, 3Q is a bottom view of a gear member, and Fig. is a sectional view ot a Vtuleruin niember for the scale arm, Figi. 2l-l is an enlarged det-ail View of an eleetrie eontaet and its operating mechanism, Fig. 35 is a horizontal seetional View taken on the line. Art of Fig. 1.

deter-ring to the: eeonipanying drawings l is a traine upon which is mounted a stand 2. and an upright support to which. are seeured filling` hoppers t by means of lu'aelcets 5. ehute 6 eonneets the tilling lioppers with the supply sourie. In the mouth ot this ehute is secured on i :evolvingr .shalt T. a forced 'teed device 8. .A lproeltet wheel t is xedly mounted on the ahal'tz T and is driven by a ehain lt),y whieh is operated by sproeliet wheel mounted ou the `hatt 1'2. il'u this shat't is :zflsotixeilly mounted a sprocket wheel l?) wliieh is operated by the. ehain ll. this eliaiu beinel driven by the sproelcet` wheel l5 on the ,shaft lt. whieh is driven hv the sprorltet Chain 1( through the sproelcet' wheel 15', this eliain heine.` in turn driven by the sproeket wheel t8 on the niain driveshatt. 19.

\\`hen the'niaterial enters the filling hopper l it is liept troni packing there by means' of ata'itators 20. whieh are revolving Continuously while. the machinerie in operation, by means ot a spiral gear 2i, whirl is eonneeted to the agitator by the slia'ft 2.2 and is operated by the. spiral gear Q3 on the shaft: t9.

Below. and eonnerted to the tilting hopper flby means o'li openings and .25 are a pair ot i \lindrieal ineafaii'ini ehan'iiloeis, 2G and 2T, in each ot' wlnrli is located a measuring iiiloelt 28 having a cutaway portion 2S, which on every complete revolution of the block drawn rearwardly, the beveled portions of comes directly below the openings 24 or 25 respectively and is adapted to receive the material from the filling hopper. These blocks are of a size to completely lill the measuring chambers, except for the cutaway portions `in the blocks, which are adapted to receive and hold as nearly as possible. the amount of material with which it is desired to fill a can or carton. Fixedly secured to these blocks are shafts and. 81 which pass through the plate 82, and on the upper ends of which are mountedintermeshing gear wheels 33 and 311-, one of which meshes with, and is operated by an intermediate gear 85, which is mounted on a shaft 36. This intermediate gear is driven by a gear 87 mounted on a shaft 38, on the lower end of which is mounted a bevel gear 39, which meshes with a mutilated gear lO. This gear is so arranged as to operate the shaft 88 and all of its connecting gears and shafts, intermittently. The gear /lO is mounted on a shaft 41, the operation of which will be explained later.

The gearing which operates the shafts-*30 and 31 s so arranged that the blocks 28 are given a half revolution, and are then stopped. with the cutaway portions directly under the openings 2i and 25 and remain stationary while these portions are being filled with the material from the filling hopper. At the proper time, another half revolation is imparted thereto, when the cutaway portions 29 aline with the openings in the bottoni 12 of the chambers 26 and 27, which openings are directly over funnels e3, which enter the scale hoppers 14 and 4:5, w. en they are in a raised position to receive the load, as shown in rig. 2. Small cylindrical V`by-passes L18, which are formed by offsets on the chambers 26 and 27, connect the hopper 1, with the scale hoppers f4 and Operating in these by-passes are screw conveyers 47 which are secured to shafts 18 on the upper ends of which are mounted bevel gears and 50, which mesh with bevel ears 51 and 52, mounted on the shaft his shaft has mounted thereon la Isprocket wheel 541, which may be splined to said shaft 53 and which is operated by a sprocket chain 55, driven by the sprocket wheel 56 on'the shaft 57. The shaft 53 is mounted on its bearings, 58, and 60, and the bevel gears 51 and 52 are slidably mounted on this shaft., s o that they may be unmeshed from the bevel gears L9 and 50, as shown by dotted lines 61 and 62, by means of forks o3 and 68', the free ends of which are -Widened and have beveled portions 64 and which operate against the bevel portion of the collars 67- and 87. 59 is a collar serving' as an abutment for the spring 68. These coilars are xedly secured to the bevel gears 51 and 52 and when the forks are the forks operating against' the beveled portions/ of the collars, force the collars and the bevel gears which are affixed thereto, to shift their position, as shown lin dotted lines. When the 4forks are forced forward the springs G8 pressing against thel gears' 51 and 52, force them to again shift their position and bring the gears 51 and 52 into mesh with the gears ,49 and 58, causing them to rotate the screw conveyors. These forks operate independently of one another so that either of the screw conveyers may continue in operation'after the other one has been stopped. These forks are integral with the arms 69 and 70 which are pivotally connected to levers 71.

On the arms 69 and 70 are pins 72 and 72 which extend upwardly through the slot 73 and 74 in the plate 75. A cross arm 76 engages both of the pins 7 2, and 72 at'certain times to force the forks G8 and 63 out of engagement with the collars 67 and 67 thus permitting the gears and 52, 49 and 51 to mesh simultaneously, in order to start both screw conveyers into operation at the same moment. Upon the cross arm 7G is a bracket 7 7, upon which is mounted a roller 78. 4This roller contacts a cam 79 on the under side of the gear 35, as shown in Fig. A revolution of the gear 35 causes the cam 79 to engage the roller 78 and draws the bracket 77, which is fixedlysecured to the 'cross arm 76, forward, thus causing the forward movement of both of the forks G3 100 and 63 simultaneously. A. spring 80, secured et one end to the rear end 81, of the plate 75, and at its other end to a member 82 fixed to the arm 76, is adapted to immediately draw the said arm. rearwardly and 105 out of Contact with the pins 72 and 72, thus leaving the arms 69 and 70 free to be drawn rearwardly, independently `of one another.

Secured to the support 3 are brackets 88, 110

which act both as supports and as fulcrums for the levers 71, to the lower ends of which are connecting bars 84, the other ends of which are pivoted to the bell cranks 85.

These cranks are mounted on a 'shaft 86 115 which is journaled on the shaft supports 86. Between the upper end of the hell cranks and their mounting are pivoted rods 87, the other ends of which are secured to the cutoff slides 88, which are adapted to instantly 120 cut off the supply of material from the pas sages 4G when the scale beams tip under their exact load. e

Mounted on the stand 2 is a support 89 near the upper end of which is secured a 125 bracket 90, having arms between which is slidably mounted a rod 91, having a trip 92 on the lower end thereof. On the bracketv 90 is also an arm 90 to which is fastened one end of a spiral spring 98, the other end of which is secured to one of the .free ends of the levers 94 or 95. There is one set ot the above members operating in connection With each scale beam 118 and 114.

To the rods l91 are connected wires 9G leading to an electric source, and on the rods 87 arepmounted electrical conducting menibers 97 to which are connected conducting wires 98, the other ends of which connect to magnets 99 supported in a box 100, mounted on the brackets 101 and secured to the inagnets are wires 102 leading to the supplyr source. In one side of the. magnet box are mounted armatures 103 and 104, the supports of which are provided with pins 105 and 106 operating in slots 'in the hearings 107. A spring member 108 operates against the pins 105 and 106, tending to hold the armature supporting rods 109 and 110normally` projecting through the side of the box. A tension adjusting device 112 is located within the box by means of which the tension of the spring 108 may be easily regu lated.

When the scale hoppers receive 'thrr correct load and tip the scale beams 'and 114, lugs 115 on the rear part ofthe` beams contact the' lower ends of the rods 91 andv force them up, causing the upper ends ot said rods, which are preferably of copper, to contact the members 97 closing the electric circuit and causing the magnets to attract the armatures, thus drawing in the rods 109 and 110, which release the`rods 116; which are mounted on the free ermc'cf" the levers 94 and 95, allowing the lspringsd to raise these levers. At the same time that the rods 91 are raised the trip members 92 trip the catches 117 from the ends of the supports 89, thus allowing the springs 118 to draw the rods 84 forward, moving the up'per arms of the bell cranks forward, and forcing the rods 87 forward, thus closing the lower openings of the screw conveyer chambers or bypasses 46 by forcing thereunder the slides 88. The same action of the spring 118 ,anses `.the rods 84 to drive forward the lower arm of the levers 71 thus drawing the upper portion thereof rearwardly and they in turn draw the arms 69 and 70 rearwardly, disconnecting the gears on the shaft 53.

As the above operation is controlled by the scale beams which work independently of one another, one scale hopper may be preparing to-deliver its load, while the other one is yet receiving its load. f

When the cam 79 on the gear 3.3. draws the arias 69 and 70 forward, the actions ot the various members are just the reverse of that above described and the hooks 117 drop into place over the ends of the supports 89, thus again rigidly setting these members.

In the meantime the rear ends ot the scale beamsv have a'gain been lowered, allowing the rods 91 toV drop to their normalfpositions bringii and breaking the electric circuits, the levers also constantly revolving, the first shaft making three rcvolntix'ins to one revolution of the latter shall'. rl`hc scale brains; are operated in precisely tbc saine nrnnnr und the orration ol.I one onliv will be dcsci-ibml. Thesc virile beanie.- :ire supported on ltnit'c edges 11,3%, nnninted on lux-nlicts l 19 and have inountc,l on their rear ends rollers 120, which engagey cam wheels 121. VWhen the lever 91- is raised by the spring 953, it is withdrawn from r. peripheral .slot 122 in a primary clutch 123, loosely mounted on the shalt 16. This releases a locking piu 124 which is 'forced Jforwardl;T b v a spring 125 and is engaged by the pins 126 on the clutch nicmH ber 127, which is tixcdly secured to the shaft 16 and revolves continuously, thusy causing the clutch and the cani wheel 128 lo rcvolvd. The lever 129 pivotcd on the shaft 1330, which is mounted on the brackets 132 and 13B on thc stand 2, is provided with a roller 1234 on one side thereof, which normally rests in the .reduced portion 142 or the cani wheel 128. However, when this wheel revolves it-raises the 'Free @nl oi" the flevcr from th i slot 3f in the .secontlary clutch 1230, loosely mounted on the shaft 51T. This re leases :i pin 140 similar in crnistruction and operation to the pin 1211-. rThis pin loclrs thc clutch to the clutch member 1537 by means oi the pins 1238, This clutch member is lixcdly secured lo the shaft :77 and rotates continuously. the rotation of the shaft causing the clutch 136 and the primary cam wheel 12l. 'o which said clutch is tixedly secured to rinato. When this cani wheel rotates, the can; 149 instantly raises the rear end 1414 olf the .scalo beam l 133, and forces the forward end holdng the scale hopper down, :unl'rigidly holdin@ the outlet 145 ot' the scale hopper down into the funnel 147 on the endless (.:onveyer belt 148 and continues to hold it in this position as long as the roller remains in the circular course or runway 149. iis soon :is the angular portion o't the course is reached the rear end ot thc' scale beam is again .allowed to drin), thus ri 'sing (he lor-.varil cud thereof, and lr the mouth 150 o the scale hopper into po.. ion to rei-cire its next load. On the opposite side ot tl i fain wheel 121 a cam 151, the function o"v which i plaincd. later.

Fixcdly secured to the prin'iary clutch 123 is a rain operating wheel 141 which carries a roller 152. This engapcs the cem 1:13 on .Q the lever `94, and iorces that lever down .uit/o Will be eX- the groove 122 in the primary clutch, when the lever abuts'the'cam smface' 154 iii` 4the groove of the pin 124, when in the position shown in dotted lines in Fig. 27, and forces the pin into the position shown in full lines and out of engagement with the clutch member 127. A dog 1560n the shaft 1230 engages the notch 157 in the wheel 141 and prevents the friction of the shaft 16 from rotating the clutch and holds it in a normal position for the next operation.- The lever .129 is provided with a spring 158/, which forces said lever to operate 'the pin 140, thus releasing the clutch 136 from the/ continuously revolving wheel 137. The clutches 128, 186, 158, 159 and 160 are similar in construction and operate in precisely the same'manner.

A pivoted lever arm 161 having a roller 163 thereon is secured at one end to the. frame 1 and has pvoted to its other end a 'T-shaped clamping arm 162, which is adapted to clamp down on the scale beams in the rear of the fulcrum and thus force the forward ends of the scale beams up, so as to hold the scale hoppers in. rigid connection with the measuring chambers. This clamping device is operated by a cam wheel 164 on the shaft 41, Between the mouths of the scale hoppers and the outlets from the/ measuring chambers, are located rubber gaskets, which hermeticalli7 seal the connections and prevent the escape of any of the material or dust therefrom. Supported from the under part of the stand 2 is a hanger 165,.upon which are slidably mounted rods 166 and 167 which are held in a normally raised position by means of a spring oper# ated rod 168, which is connected to them by the cross bar 169. This bar is pivoted at 17() to the upper end of the rod 168, and has its free ends 171 and 172 held in sockets 178 and 174 which are so constructed as to permit of a vertical movement of the bar. The sockets 174 and 178 are iixedly secured to the rods 166 and 167. The ends of these rods 166 and 167 are seated in members 175 and 176, which are mounted above a shaft 1-79 and carry hooks 177 and 178. These hooks are pushed forward by springs 186 and are adapted to engage the square center portion 181 ofthe shaft 179. A spring 182 is adapted to lio-ld the shaft 179 in the. normal position shown in Fig. 8 in full4 lines. The hanger 165 has a rearwardly projecting arm 188 to whichx a lever 184 is pivoted, the end 185 of .which extends under the lever 186, which is pivoted to the fraaie 1; and the free end of which is adapted to rest normally in the groove 186a in the main clutch 160-and -hold the pin 124 thereon, out of engagement' with the continuously revolving 4cam wheel 187. 'A spring l188 holds the lever i286 innormal engagement withlthe clutch '160.A

When` the cam 151 on the primary cam wheel 121 reaches an extremely low position in its revolution, it contacts and forces down the rod 167 causing the hook 178 to en age squared portion 181 of the shaft 179 w ich will hold the rod down unt-il released. This movement forces one arm of the cross bar 169 down and when the cam 189 on thev primary cam wheel 121 reaches its lowermost position it engages and forces down the rod 166, causing the hook 177 to engage under the squared portion 181 of the shaft 179. The downward movement of the rod 166 forces down the other end of the cross bar 169, which forces down thc'bar 168 causing it to force down the rear end 190 of the lever 184, and forcing up its forward end, which in turn forces up the lever 186. This permits the pin 124 in the main clutch to engaige the constantly revolving cam wheel 187 which is integral with a collar 191 on which is. mounted a bevel gear 192, which is driven by abevel gear 198. The collar 191 is loosely mounted on the free end of the shaft 41. A clutch 160 on the shaft 41 is provided with a projecting carnwheel 198 vwhich engages a roller 199 on the lever 200 causing it to turn shaft 179 thus releasing the hooks 17.7 and 178 and allowing the rods 166 and 167 to resume their normal positions.

It will be seen from the foregoing that both scale hoppers will be in connection with the measuring chambers before the shaft 41 is connected up to the driving shaft 19 and started to rontate and operate theV mechanism which fills the scale hoppers.

On the cxtreme forward end of the shaft 41 is a gear 194 which meshes with and operates a large gear 195 which is ixedly mounted ou a shaft 196. This shaft operates the endless conveyer belt 148 which conveys the cans 288. The belt must operate so that the cans will come directly under-the outlets 145 of the scale hoppers so that the material therein may be deposited directly into the cans, therefore.in ordcrto maken nice adjustment of these members, I have provided a centering device, constructed as fol# lows: Pivoted to the frame 1 is a lever 201 having a right angular hook 202 on its free end and a roller 203 near its upper end. This contacts the cam wheel 205, causing the lever 201 to be constantly forced out beyond the extreme cam extension thereon. This causes the hook 202, which engages the steel abutment206, resting against the lug 207 to constantly draw the wheel 187 and consequently the shaft 41 to which it is secured by a kev 208, to a position which will cause the funnels 147 to stop and remain directly under the outlets 145 of the scale hoppers. The knife edges l118Il for the4 immediately the correct weight of material is received into the scale hopper. YVt/'eights 212 are slidably secured tothe scale ,arms by`means of which the scale` arms may be made to weigh and then deposit into cans or cartons any desired quantity of material. Secured to the upper parts of each screw threaded and screwed off-center upon this arm is a small balance 214 byV means of which the scales may be verynicely ad justed. This Weight is screwed off-center so that the heavier portion will remain down and any movement of the 1nachine".`yvi`ll not tend to shift it out of its desired position as it automatically holds itself in its desired position. y f y AMounted on the shaft 196 is a base Wheel 215 having fixedly secured /to each side thereof, sprocket Wheels 216 and 217, which are of greater diameter than the base Wheel.

`Th`e conveyer belt is constructed in the maner shown in Fig. 16 and is in the form ,of a sprocket chain and consists of a series of steel plates 218 having a reduced forward portion'219, and an enlarged rear portion 220, Which is cut away to receive the reduced end of the following plate. Bolts 221, pivotally connect the plates. An opening 222 'fis'formed in each plate and a funnel147 is fixed in each of these openingsvand passes through the plate. A gasket 223 is fitted into a'l'ecess on the under side of each plate contacting the funnel. The bolts 221 extend beyond the small ends of the link plates on each side and are adapted to be engaged by the sprockets 224 on the sprocket Wheels 216 and 217. A funnel 147 having a can engaging portion 225 is secured to each of the link plates 218 vin such a position that Vit .will contact a can and hold it in an uplright position on the conveyer belt.

In eachof the links 218 adjacent the can engaging portion 225 of the funnel is secured a member 147a, having a curved end 14:7 adapted to engage a can 233 and hold it pressed frictionally against said `funnel so it Will not drop from the funnel "of its own Weight. This member is shown only in one instancein Fig. 17, it being thought unnecessary to show it in connection with every can.

Situated at a proper distance from the sprocket Wheels 217 and 218 and on a direct Y line therewith isl another pair of co-acting sprocket Wheels 226 on whichl the con ei belt 148 is rotated. The Wheels c Amounted on a shaft 227 ournaled to, a jour-- 5 nal su ppojrt 223. A frame Work 222/is also fixed to this support and to the main frame, from which is supported a delivery table Supported on a line with the extreme uppermost portion of the base Wheel 215 is a slideivay or delivery chute 231, having upwardly extending flanges. The end 232 of this slideway is beveled so that the extreme end thereof will extend partially above the buse Wheel. A sleeve shaped band 23st is secured to the top of the end of the slideway and passes nearly around the ba'se Wheel. Thishas its other end held by the rod 235. The bottom ot' the cans 233 carried by the endless belt conveyor slide over this band. and are guided thereby onto the slidcway 231. The slideway is mounted in supporting members 236 on the frame Work 229 and* is supported by the springs 237. The rear end 238 of the slideway inclines downward and rests on the table 230 insucha manner as to guide the cans 233, ivhich in descending the inclined portion of the slideway have by their Weight released themselves from the tunnels 147, onto a rotary disk 239, where they are kept from sliding` off said disk by a guide member 2710. The disk is revolubly mounted on the table 230 being mounted on a shaft 241 which carries a sprocket wheel 242 at its upper end. This sprocket is engaged by the tunnels 1117 on the conveyor belt 148, which as they move along, rotate the shaft, sprocket and disk 239, which carries the can to the point of delivery.

A member 243 hinged to the Istand 2 and having a pair of openings therein to lit over the tunnels and carrying rubber gaskets 2411 thereon is adapted to hermetically seal the connection between the tunnels and the scale hopper delivery openings 145, to prevent the escape of the powder dust when the contents of the scale. hopper is being deposited into Vthe tunnels. A spring 246 holds the member 243 out of contact with the tunnels.4 Then the cans 233 are placed on the funnels 147 down side up, as shown at 233 in Fig. 1, the belt conveys them to the wheel 215, and as they pass around this wheel the mouths thereof are compressed tightly against the gaskets 223, by means of the slideway on the wheel 231', thus preventing the escape of dust when the material is being deposited in the cans. A sprocket chain 2417 engages a sprocket wheel 248 having pins thereon. This agitates tappers 249 pivoted to the frame 1, held normally up by a spring 250,A which is adapted to settle the material into the filled cans which stop for a short period directly over the tappers. The. saine sprocketchain 2-17 operates tappcrs 251 which are adapted to loosen any -uiaterial in the scale hoppers when they are delivering thc load and force any air which may ha 've been collected therein to pass np azulthijough the air chute 252 as shown by the'arro'uf's iii-Fig. 31. The sprocket chain 24T is driven by a sprocket mounted on the shaft 16. lVhen the scale hoppers descend a guide arm 253 is adapted to direct the openings 145 therein into the mouths of the tunnels.

Pivoted sealing members 254 are located in the scale hoppers and held normally closed, as shown in Fig. 31, by means ot a rod 255 which is held normally down by a spring 256, however when the scale hopper' goes down a fixed hook 257 which engages the rod 256 causes it to raise this rod, thus raising the seal and releasing the material in the hopper as shown in dotted 4lines in Fig. 3l.

The operation of `the machine is as follows: Material from the hopper l is 'fed into the opening 29 in the members 28 in cylinders 26. As the members, 2S rotate they discharge their loads into the scale hoppers. As the loads are slightly insufficient to overbalance the scales, the auxiliary teeds deliver very small streams of material into the scale hoppers until the exact weight which the machine has been adjusted to weigh, is delivered to the scale hoppers, whereupon an electric circuit is closed which instantly cuts ol the auxiliary feed. The scale beams holding the scale hoppers are tipped hermetically sealing the delivery mouths to the tunnels through lwhich the material is delivered to the cans. Cam operated lock arms engage the forward part ot' the scale beams and hold the scale hoppers in rigid connection with the tunnels until every particle oli' their contents have lbeen emptied into said cans. Tappers hitting against the hoppers dislodge every particle of the contents thereot. When the'scale hoppers overbalance t-he scale beams, the rear ends thereof are forced vup which causes the rotating clutches to engage wheels having cams thereon which are adapted to raise the levers 129, this causes a cam to engage the rear of the scale arms and hold them in a ,raised rigid position whereby the scale hoppers are held in fixed engage ment with the tunnels holding the cans to be lilled. The same operation which raises the lever causes cams to operate rods which in turn operate a clutch on the 'shaft al which throws it into or out of rotation. On this sha-ft is a cam wheel which is adapted o operate a rod with cross arms thereon which is adapted to engage the scale beams and bear down on the rear portion thereofcausing tliemouths of the scale hoppers to be hermetically sealed against the delivery chambers. The same shaft 4l' has a mutilated gear thereon which is adapted to engage the vertical shaft 38 at the same time the hoppers are sealed to the delivery chambers, said shaft 38 being gearedwith shafts which operate the members 28 which deliver the loads to the scale hoppers. The rotation of the shaft llwhile operating the verticalf Iior delivering approximate loads to said shaft 38 also operates a shaft on which is mounted the sprocket wheels which drive the endless chain 'conveyors thereby moving the lilled cans while a load is being delivered to the scale hoppers and bringing the emptied cans into position to receive the next loads.

claim and desire to secure by-Lettcrs Patent:-

l. in a weighing and filling machine, scale hoppers commonly operated, means hoppers independently, means by which the loads in said hoppers may be augmented in dependent-ly, means for delivering the loads from said hoppers simultaneously, tunnels for receiving said loads and means whereby said hoppers may be independently lowered to receive said tunnels.

2. In a weighing and lilling machine, scale hoppers commonly operated, means tor 8f delivering approximate loads to said hop persl independently, means by which 'the loads in said hoppers may be augmented independently, means for delivering the loads trom said hoppers simultaneously, tunnels for receiving said loads, means whereby said hoppers may be lowered to receive said. tunnels, an d means for binding` said hoppers to said tunnels after both of said hoppers have been lowered.

ln a weighing and filling machine a. weighing and illing hopper, a conveyer conveying cans to said hopper, meansl for sealing the connection between said cans and said conveyor, said means consisting ol a slideway comprising a metal band.

fr. In a weighing and illing machine a weighingl and lilling hopper, a conveyor conveying cans to said hopper, means for seal.- ing the connection between said cans and said conveyer, said means consisting ot a slideway comprising' a metal band, a wheel on which said band is mounted'.

'5. In a weighing and filling machine a weighing and illing hopper, a onveyer conveying cans to said hopper, means for sealing the connection between saidcans Vand said conveyer, said means consisting' of a slideway forming an arcuate course.v i 6. In a machine as described a weighingv 115 and illing hopper, a con/veyer conveyingl cans to said hopper, means for sealing the connection between said cans and said con veyer, said means consisting of a slideway forming an arcuate course, said slideway then taking va horizontal course.

7; In a machine as describeda weighing and lilling hopper, a conveyer.,'so'uveying cans to said hopper, means for sealing the connection between said cans and said conveyer, said means consisting of a slideway forming an arcuate course, said slideway then taking'a horizontal course and termA minating in an incline course;

S. nvapiweighing and illing machineya 13d ot gaskets on said belt, means pressing weighing hopper, an endless conveyor chain belt tor conveying cans,\1neans on said conveyer for sealing the mouths ot said cans t0 said conveyer, said sealingmeans consisting ol gaskets on said belt; means for pressing the im uths ot said cans against said gaskets,

said means consisting ot a slidcway adapted to bind said cans against said belt, and means t'or holding` said cans on said belt and means whereby said hopper` will cause the actuation ot said conveyor.

9. In a weighing ,and filling machine, a weighing hopper, au' endless conveyor chain belt toi' conveying cans, means on said conveyer tor scaling the mouths oi said cans to said conveyor, said sealing means consisting ot gaskets on said belt, said means pressing lthe mouths ot' said cans against said gaskets, said means consisting of a slideway adapted to bind said cans against said belt, means `tor holding said cans on said belt, said means adapted to hold said cans in a vertical position and means whereby said hopper will canse the actuation ot said conveyer.

l0. lu a weighing and filling machine, a 'weighing hopper, an endless conveyor chain belt for conveying cans, means on said conveyer tor sealing the mouths ot said cans to said conveyor, said sealing means consisting the months ot' said cans against said gaskets,said means consisting of a` slideway adapted to bind said cans against said belt, means for holding` said cans on said belt, said means adapted to hohl said clans in an inverted vertical position, and means whereby said hopper will canse the actuation ot said conveycr.

ll. ln an automatic weighing and tilling machine, a weighing hopper, an endless conveyor belt, sprocket wheels `for drivingy said' belt, tunnels carried by said belt an to :arry cans placed thereon, means for seal ing said cans to said belt, means for holding said cans on said belt, a slideway upon which .said cans are inoved,`and a curved slideway ior guiding said cans onto said slideway, and moans whereby said hopper will cause the actuation of said conveyor.

l2. 1n an automatic weighing and filling` machine, ay weighing hopper, an endless conveyer belt` s1nocket wheels for driving said belt, tunnels carried by said belt and passing thcrethrtmgh, said tunnels adapted to carry cans placed thereon, means for sealing said cans to said belt, means for holding the. cans on said belt, a slideway upon which said cans are moved, a curved slideway for guiding said cans onto said slideway, means for loading said cans, and me: ns whereby said hopper will cause the actuation ot said 13. 1n an automatic weighingand filling machine, an endless conveyor belt, sprocket wheels for driving said belt, tunnels carried by saidbelt and passing therethrough, said tunnels adapted to carry cans placed thereon, means for sealing said cans to said belt, means tor holding the cans on said belt, av slideway upon which said cans are moved, a means for guiding said cans onto said slideway, a means for loading said cans, an independent member for sealing the connectionbetween said tunnels and said loading means, said loading means adapted tti/cause the actuation of said conveyer.

11i. In an automatic weighing and filling machine, an endless conveyor belt, sprocket wheels or driving said belt, tunnels carried by said belt and passing therethrough, said tunnels adapted to carry cans placed thereon, means ior sealing said cans to said belt, means for holding the cans on said belt, Ya slideway upon which said cans are moved, a means for guiding Said cans onto said slideway, a means for loading said cans, a means for sealing the connection between said tunnels and said loading means, and a tapper tor settling the load in said cans, said loading means adapted to cause the actuation of said conveyor.` i

l5. In an automatic weighing and filling machine, means tor automatically deposit- ,ing a desired load into cans, a tapper for settling said load in said lcans, a means for permitting air to pass from said can, said loading means adapted to cause the actuation of said conveyor.

16. In an automatic weighing and filling machine, an endless conveyer belt, sprocket wheels for driving said belt, tunnels carried by saidbelt and passing therethrough, said tunnels adapted to carry cans placed thereon, means for sealing said cans to said belt,

y, means for holding the cans on said belt, a passing therethrough, said tunnels adapted slideway upon which said cans are moved, a means for guiding said cans onto said slideway, a means for loading saidl cans, an independent means for sealing the connection between said tunnels and said `loading means. a means for settling the load in said cans, and a means for stopping said cans over said settling means, said loading means adapted to canse the actuation of said conveyer.

17. In an automat-ic weiffhilito and fillinfr b D C separable means for sealing the connection between said cans and said loading means, a

`,means tor settling the load in said cans, said 

